Belt Pack--This cordless headset style is comprised of two components: a wireless amplifier and a headset top, If the user wants to make a call, he only needs to press the key on the headset and use voice recognition to initiate the call.
Apocalypse. The Apocalypse line consists of a single subwoofer: Model AP12D. AP12D is a 12-inch speaker and requires 1.5 cubic feet of air space for sealed enclosures and 2.0 cubic feet for ported enclosures.The RX line is Planet Audio's most extensive offering including 8, 10, 12 and 15-inch subwoofers.xample: 4,032 / 1,728 = 2.33 cubic feet. The air space/volume of this enclosure is 2.33 cubic feet. Planet Audio's Big Bang line of subwoofer consists of two 12-inch (models BB12D and BB212D) and two 15-inch subwoofers (BB15D and BB215D).
Update: the question is how do you find the air space requirement for a subwoofer.... i don't know which subs i want yet, i have to pick subs that can perform in 1.25 cubic feet of airspace each..Follow.2 answers 2. can't seem to find the air space requirements for subs in a sealed box? like any subs? it's not on any of the specs of subs im looking at? where do i find it? or is it the same for each size sub, like the same air space requirement for all 12 subs, etc.